what would be nessary for me to enter into communion with Orthodoxy, with me being a roman catholic

You would need to contact a local priest and discuss your personal situation further. He will decide, along with his bishop, what exactly he would like you to do in terms of preparation, reading materials, attendance at church etc. before he receives into the Church.

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"Christianity is not a philosophy, not a doctrine, but life." - Elder Sophrony (Sakharov)